$ git clone -n https://src.fedoraproject.org/rpms/rust-partition-identity.git /var/lib/mock/f40-build-2083085-49891/root/chroot_tmpdir/scmroot/rust-partition-identity
Cloning into '/var/lib/mock/f40-build-2083085-49891/root/chroot_tmpdir/scmroot/rust-partition-identity'...
$ git fetch origin b348b04a9d175995ebead2958d2107f0ef2620d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-partition-identity
 * [new ref]         b348b04a9d175995ebead2958d2107f0ef2620d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b348b04 Update to version 0.3.0; Fixes RHBZ#2066331